[Fedora-i18n-bugs] [Bug 590612] [abrt] crash in ibus-anthy-1.2.0.20100115-1.fc12: engine.py:691:__update_anthy_convert_chars:IndexError: list index out of range

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https://bugzilla.redhat.com/show_bug.cgi?id=590612

fujiwara <tfujiwar at redhat.com> changed:

           What    |Removed                     |Added
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               Flag|                            |needinfo?(tk01 at mbd.nifty.co
                   |                            |m)

--- Comment #2 from fujiwara <tfujiwar at redhat.com> 2010-05-10 22:09:40 EDT ---
How do you reproduce your problem?
I cannot reproduce it.

>From your stack, I created the following test case:

% cat test.py
#!/usr/bin/python
# -*- coding: utf-8 -*-

def __update_anthy_convert_chars(__cursor_pos):
    __convert_chars = u""
    pos = 0
    __segments = list()
    __segments.append((0, u"\u5148\u751f\u3092"))
    __segments.append((0, u"\u5148\u751f\u3092"))
    for i, (seg_index, text) in enumerate(__segments):
        __convert_chars += text
        if i < __cursor_pos:
            pos + len(text)
    print "i =", i
    print "text =", text
    print "pos =", pos
    print "seg_index =", seg_index
    print "__cursor_pos =", __cursor_pos
    print "len =", len(__segments)
    print __segments[__cursor_pos]

def main():
    print "#### possible situation"
    __update_anthy_convert_chars(0)
    #print "#### impossible situation"
    #__update_anthy_convert_chars(2)

main()

% python test.py

If I commented out the two lines of impossible situation in the script, I could
see the same error.
But I think the '__cursor_pos' value is always within __segments[].
So I need to know how to reproduce your problem.

Maybe you typed something, something, "senseino", something..., moved the
cursor with a special way and typed space key.

I tested several ways but the cursor position is always within the preedit
segments and cannot reproduce your problem.
If I will add 'if self.__cursor_pos >= len(__segments):', the main problem will
be fixed but I think the root cause should be fixed instead.

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